Machine fok sawing shingles



1 UNrrED STAWENT oFFroE.

JONATHAN HOBBS, JR., OF FALMOUTH, MAINE.

MACHINE FOR SAWING SHINGLES.

description. 1. I make the bed frame, on which I placel the operatingparts of the machine in the following manner, I lay down a cross sill ateach end fifty two inches long of 6 by 8 timber. 2. The ends of thefront, and rear side pieces or sills are laid on the ends of these crosssills, the front sill is 3, by 8, and the back sill is 8, by 8. 3. Neareach end I place a pair of friction rollers, for the carriage to travelon, eleven inches in diameter, of proper thickness the edges turned to amiter, each pair is on one shaft. The back roller is made thick enoughto have a whirl for a small band, on the inside of it. 4. Four feet fromthe left ends of the sills I frame in a cross sill; and two feetfarther, in the clear, to the right I frame in another cross sill 8 by8. 5. On these two cross plates I lay two timbers lengthwise of theframe (No. 1,) of suflicient strength, on which I hang the circular saw.These timbers are about sixteen inches apart, and placed toward the backside of the frame. 6. On the back sill I set four posts 14 inches high,and 4, by 4. 7. On these posts I put a rail 2 inches by 6, and twelvefeet long. 8. On the left end of this rail I put a block, 5 inches wide,and 7 high, and 5%- feet long. The right end of this block is scarfed,and makes one of the inclined planes. 9. Twenty-seven inches to the leftI place a loose block on the top of the other having the right endscarfed, which makes the other inclined plane. This blocks is set onloose, with two dowel pins, and can be removed to the left endvv of therail when used for sawing clap boards. When shingles are sawed, bothinclined planes are used, and when clap boards are sawed, the left oneonly is used. 10. On the' back side, and near the right end, I hang awheel or pulley about three feet diameter on a shaft about two feetlong, on the outer end of the shaft I turn two whirls, on the inside ofthis wheel I make another wheel or pulley one, and a half foot diameter.These Vdierworking, and are moved by belt from the main drum. These twopulleys should hang very near the outside of the frame. A numL ber ofplane iron or spoke shaves are placed on the inside of this wheel in therim by which the shingles are edged, and jointed, being held in place bya hook, or pin. This is also called the j ointing wheel. 11. On theinner end of this shaft is a loose cylinder about siX inches long, andtwo diameter to go on loose en the shaft. This cylinder has a flanch, orrim, on the end next to the wheel two inches broad. This flanch vhas apin in the side next the wheel which catches on to-n another pin in thewheel corresponding with it when the cylinder is pushed up against thewheel, and then it turns with the wheel, and winds a belt around itwhich is attached ent sizes are designed for different speeds in by theother end, to the piece on the `right/" end of the carriage, and therebyruns the carriage back when the shingle is cut out, ready for the neXtcut. 12. On the left of this cylinder a knee is placed, one leg aboutsiX inches long with a slot which meshes onto the flanch No. 11. `Theother leg ex-y tends about eight inches passes vunder the carriage, andthen turns up about four inches. This upright part of the knee isoperated upon alternately by two pins stand# ing on the inside of theback side piece of the carriage, whereby the loose cylinder is meshedonto the wheel, and unmeshed by the pins aforesaid No. 11.

When clapboards are sawed the right pin is moved about 28 inches to theright to accommodate the length of the log. This knee hangs on a pin atthe angle. 18. About twenty inches from the left end of the back sill, Iput in a roller about 6 inches long, and eight diameter, having a righthand screw, or spiral grooving, coarse thread, the l whole length. Thisscrew runs off on the back end of this roller, and is. cut in, and makeshalfa turn on` that end, and terminates at nearly the center. The use ofthis diminution is to bring the bolt, or log lightly against the sawwhen first beginning to out. Near the circumference of this roller, andagainst the termination yof the scroll I bore a dozen holes, or less,and put a pin into any one of them as occasion may require.

length, and fasten one end of it to the l left back side pieces of thecarriage,

end of the 14. Then I takeV a line of proper and pass it twice aroundthe roller, and then hang a weight to the other end below sufficient tocarry the carriage forward to the cut. The piece aforesaid should be soplaced that, when the carriage is hauled back, and the machine set forthe next cut, the line should bear a little against this pin so as tostart the carriage easy. Then when the line leaves the pin it hangs atthe diminution of the scroll aforesaid which gives the weight a lightpower upon the carriage, when the saw first begins to cut, whichincreases as the roller turns forward, until it comes .to its fullstrength at the circumference. Any other method of carrying the boltforward may be used if preferred. 15. At the right end of the back sill-I place a platform about 26 inchessquare; on this I set a sliding frameabout 22 inches by 12, held in place by two wooden hooks standingoverthe sides. In this sliding frame I hang a whirl fifteen inches indiameter on a shaft about 21 inches long. This whirl stands in rangewith the whirl on the jointing wheel; on the other end of this shaft isa whirl corresponding with the one on the friction roller No. 3, a bandpasses varound this large whirl, and the whirl on the outer end of theshaft of the jointing wheel, and a cross band passes around the whirl onthe friction roller, and the whirl on the other end of this shaft. In aline with the sides of the sliding frame about eight inches to the rightI set two pins one inch indiameter from each side piece of the slidingframe, I attach a line to each pin. The use of these pins, and lines isby winding or unwinding these lines around these pins.' The bands on thewhirls aforesaid can be tightened or loosened at pleasure. ThisYapparatus is called the regulator, 16, on the friction rollers aforesaidNo. 3, I place the traveling carriage aforesaid about siXteen feet long,and three feet four inches wide. The side pieces 4: by 6, having ties orcross timbers about two feet from each end. At the right hand end I puta strip of board across running out at l the back side about 4 inches towhich I fasten the belt having the other end fastened to the `loosecylinder No. 11. These side pieces are about three feet one inch apartin the clear. 17. Three feet nine `Ainches from the left end of thecarriage I halve on a piece perpendicular two feet ten inches long 8 by2. I call these pieces stirrups. These stirrups have each a short slotthrough which they are bolted onto the head, and tail blocks; each blockhas several holes, by which the stirrup can be raised, and lowered aswell as by the slot. 20. On the tops of these stirrups I put a cappiece, having long` tenons passing up through the cap piece, and keysthrough each tenon over the cap piece. 21. In the center of this cappiece I pass a bolt up through it, and through a wooden spring. Thisspring reaches nearly the length of the cap piece, having two iron rodsfastened into it which pass loose through two holes down into the ragwheels by which the setting for the shingles is performed. These pinsare pressed down hard by the bolt on these rag wheels whereby the jawsare kept firmly in their places at each set, as the shingles are sawed.22. At the lower end of each stirrup a plate of iron is riveted on theinside, and goes down below the wood far enough to admit a mortise oneinch; the ends of the foot piece of the stirrup enter these mortises,whereby it is supported. The front corner of each of these plates isdrawn to a hook turning outward. The use of these hooks is when sawingclapboard to pass a line around them and strain up with a lid after themanner of a wood saw, so as to hold the stirrups hard against the endsof the log so as to hold it firm in its place at each set for a board.23. The foot piece of the stirrups is 6 by 2, reach between thestirrups, and having a tenon at each end passing through the mortise inthe plate, at the bottom end of each stirrup. 24C. About 8 inches fromeach end cross pieces are riveted into the foot piece about twelveinches long, on which the shingle bolt rests when sawing. 25. At theleft end of the foot piece of the stirrups, an iron Yplate by 4, isriveted, having several holes for the bottom gudgeon of the left shaftof the jaws to stand in, as occasion may require, to accommodate a longor short shingle bolt. Y

26. The jaw's that hold vthe bolt are made thus: taleV a rod of roundiron, and 212` feet long. A hub about six inches by twoV is put fast onthe lower end. These hubs are set with short sharp teeth which sink intothe end of the bolt, and hold it fast; on the upper end of each shaft isarag wheelinches diameter. These wheels, on the edges are cut with eightsets of rags or notches, and every other one twice the length of theother, so as to set for the head, and point of a shingle alternately, asthe bolt is sawed. The left jaw piece stands about six inches from theleft stirrup piece, the lower gudgeon in one of the holes in the ironplate, and the upper gudgeon in an iron on the cap piece, the

right jaw piece is set the lower gudgeon in one end of a knee, and theupper en d in the iron on the cap piece. These jaws stand about 19inches apart. 27. The knee on which the right jaw piece stands' is afiatrectangular piece of iron, the inner end about seventeen inches long,and the outer one twenty-tive, this knee is hung at the angle on a pin;the longer leg runs to the lett inside of the front side piece of thecarriage frame having the end drawn to a pin, and turned down through ahole, in a fiat piece of iron, which passes loose through a mortise inthe front'side piece of the carriage. The lower gudgeon stands in theshort end of this knee, and the upper gudgeon in the iron on the cappiece. On the under side of the cap piece I rivet on two fiat pieces ofiron about 5,; inch wide, and 4 long, on the back side the uppergudgeons of the jaw pieces pass through these irons close to the cappieces, and the upper end of the rod which holds up the right jaw pieceof the right setter, passes up through the end of the fiat piece of ironon the front. 28. The fiat piece of iron which hitchesl on to the longleg of the knee, and passes through the side piece of the carriage, alsopasses loose through a mortise in a wooden spring on the front side ofthe carriage having several holes in the outer end, whereby it may beshortened, or lengthened by a pin, in some one of those holes. 29. Thisspring is of proper length, and strength, and is bolted on to the frontside of the carriage. This spring as it is tightened or loosened byplacing the pin in diHerent holes brings the right jaw up harder, orlighter as occasion requires in holding the bolt, when this spring ispushed in, it opens the jaws to receive the shingle bolt, and when thespring halts back it shuts the jaws up on the bolt and holds it fast. Alike motion opens the jaws to take the bolt out if necessary. 30. Theinner, or short end of this knee is held up by a small rod of ironpassing through it with a nut pin or head on the under side, and theother end passing up through the iron on the cap piece aforesaid with apin, or nut on the end. 3l. A pair of nippers takes hold of the outeredge of the bolt to keep it from canting. Each jaw end of these nippersis turned up to a round sharp po-int. The under arm of these nipperslies on the upperl side of the front side piece of the carriage, passingthrough a hole in a piece of iron on the front side of the carriage. Itthen turns up having notches on the edge into which the other armcatches to hold the bite ot the nippers. 32. The Setters which move therag wheels on the upper ends of the shafts of the jaws, are made asfollows: The setter on the head block is a knee, or right angular pieceof iron, attached to the head block, 0n the inside, by a pin at theangle, having Lone leg reaching down from the angle about 18 inches andthe other reaching back horizontally about 28 inches At the bottom end,a iat piece of iron 6 inches long is pinnedf on,- and the other endpinned on toy another flat bar of iron standing perpendicular, andparallel with the lower leg of the knee, it also passes up by thehorizontal part ofthe knee, and is pinned on to the stirrup. This pin isabout 2S inches long, and the upper end works on the lett rag wheel toset it. The outer end of the horizontal part of the knee, at the outerend is turned up with a quarter twist, which turns the fiat side. the.`other way, having a bolt hole through it.

A iat piece of iron about ten inches longl having .a slot nearly thewhole length .is bolted on by means of the slot; this piece..

4can be set up, or down at pleasure. At the lower end of this piece apin is riveted standing out Y about three inches, with a nut, or pin atthe end. A trunk 4 inches in diameter is put on this pin. 33. The setteron the tail block is fastened on to the inside of the tail blo-ck by apin at the angle. It is a rectangular knee like the other having one legrun up perpendicular about 18 inches, and the other running backhorizontally about 28 inches. The upper end works on the right rag wheelin setting. The outer end of the horizontal part is made round, and atrunk put on it like the other. A line is passed from one either to theother loose, or to which a light weight is put which inclines thesetters together, whereby they are kept up to the rag wheels so as notto make any mistake in setting. 34. Outside of theseV trucks, a rail isput on to their gudgeons, which keeps the trucks at equal distances atall times from each other. 35. A brace is slipped on to the gudgeon ofthe truck, on the setter attached to the head block by one end, and theother end is slipped on to a pin standing in the upper side of the tailblock, at the back end. This brace keeps the setters, and trucks steadyin their places as they run up, and down on the inclined planes, inperforming the operation of setting for the shingles as they are sawed.

' Whenever the machine is put in operation the rag wheels should berelatively so placed that one setter will set a short notch, when theother a long one, and then they will actuate continuously, in settingbutts, and points of the shingles, and will never miss. Then when thesaw has made a run, and the carriage has run back till the saw is clearof the bolt, the trucks mount the inclined planes, whereby the Settersoperate upon the rag wheels, and set for the next shingle, and they willcontinually set alternately, a long notch, and a short one, whereby thebutts, and the points of the shingles are changed alternately.

ters for Working at the top instead of theV bottom; 4, the cap piece andthe apparatus on the top of it; 5, the bed piece on Which .the boltlies; 6, the difference in the construction of the head, and tailblocks, and the stirrups; 7 having the left saw stationary. 8. The kneeon which the right saw stands, and the rod holding it up; 9, the

string and Weight Which holds the Setters together. 10. The double pronghand Which regulates the set. 11. The regulating apparatus described inNo. 15. 12. The 18 inch pulley on the inside of the jointing Wheel. 13.Having the pins Which Work the knee which moves the loose cylinder, onthe shaft of the jointing Wheel on the inside of the back side piece ofthe carriage, instead of on the outside. All the other parts, andmovements of this machine, I consider either embraced in my formerpatent, or common to other machines to WhiehI claim no eX- clusive rightin these specieations.

In testimony that the labove is a true specifica-tion of my saidimprovement as above described, I have hereunto set my hand this eighthday of July, A. I). 1836.

JONATHAN HOBBS, JR.

Witnesses:

JONATHAN MORGAN, .PETER SANBORN.

